ATA5278 ATMEL Corporation, ATA5278 Datasheet - Page 9

• Manufacturer Part Number: ATA5278
• Description: Stand-alone Antenna Driver
• Manufacturer: ATMEL Corporation

Figure 3-7.
3.7
4832D–RKE–12/07
SPI Commands
S_CLK
S_CLK
S_DO
S_DO
S_CS
S_CS
S_DI
S_DI
SPI Timing Diagram
X
X
X
X
Z
Z
t
DO,enable
The microcontroller can access the following functions of the ATA5278 via the SPI:
Table 3-1 on page 10
t
DO,enable
• Read from/write to configuration register 1
• Read from/write to configuration register 2
• Read from the status register
• Write LF transmission data to the buffer and start the transmission
• Verify the state of the data buffer
• Clear the fault memory
• Stop the modulator
• Enable the power-down mode
t
DI,setup
LSB
X
Second Possible Serial Timing, S_CLK Polarity 1, Phase 1
t
First Possible Serial Timing, S_CLK Polarity 0, Phase 0
S_CLK,h
LSB
t
DI,setup
LSB
t
S_CLK,per
Input bit 1
LSB
lists all functions and their definitions.
t
t
S_CLK,I
S_CLK,h
t
S,CLK,per
Output bit 1
Input bit 1
t
S_CLK,I
t
Output bit 1
DO,delay
t
DI,hold
Input bit 2
t
DO,delay
Output bit 2
t
DI,hold
Input bit 2
Out bit 2
MSB
MSB
MSB
MSB
t
t
DO,disable
DO,disable
X
ATA5278
X
X
X
Z
X
Z
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